From: Daniel Kutchin (daniel@kutchin.com)
Date: Thu Feb 12 2009 - 16:08:49 ARST
Application Extension Platform
http://www.cisco.com/en/US/products/ps9701/products_data_sheets_list.html
--- Daniel-----Original Message----- From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Haroon Sent: Donnerstag, 12. Februar 2009 19:03 To: Cisco certification Subject: Somewhat OT: Site Redundancy (Network, DNS, WWW, SQL services)
Hello Experts,
My question is somewhat off topic, I hope that is okay. I am trying to figure out how to setup site redundancy for online highschool and university setup, a backup site for our primary location so in case of power/equipment failure or ISP issues, the users are not effected by the down time.
1. In case of failure at the main site, the switch over should be seamless to the end user. I believe this is possible with DNS load balancing, any recommendations? Off site dns load balancer? 2. SQL databases should sync hourly or at least once a day for latest data at the backup site.What software would do this? 3. What type of equipment is required on each site to accomplish this setup? Cisco's CSS of any use here? 4. Do I need to get a dedicated site to site VPN?
Any other suggestion or ideas would be greatly appreciated.
Thank you,
Haroon
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